US3991158A - Preparation and use of thallium palladate as cover layer of metal anodes - Google Patents

Preparation and use of thallium palladate as cover layer of metal anodes Download PDF

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Publication number
US3991158A
US3991158A US05/516,996 US51699674A US3991158A US 3991158 A US3991158 A US 3991158A US 51699674 A US51699674 A US 51699674A US 3991158 A US3991158 A US 3991158A
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US
United States
Prior art keywords
thallium
tlpd
palladate
cover layer
heating
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
US05/516,996
Other languages
English (en)
Inventor
Christine Zollner nee Moller
Gerhard Thiele
Dieter Zollner
Konrad Koziol
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
De Nora Deutschland GmbH
Original Assignee
Individual
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Individual filed Critical Individual
Priority to US05/737,548 priority Critical patent/US4065377A/en
Application granted granted Critical
Publication of US3991158A publication Critical patent/US3991158A/en
Assigned to HERAEUS ELEKTRODEN GMBH reassignment HERAEUS ELEKTRODEN GMBH ASSIGNMENT OF ASSIGNORS INTEREST. Assignors: CONRADTY GMBH & CO. METALLELEKTRODEN KG
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01G—COMPOUNDS CONTAINING METALS NOT COVERED BY SUBCLASSES C01D OR C01F
    • C01G55/00—Compounds of ruthenium, rhodium, palladium, osmium, iridium, or platinum
    • C01G55/002—Compounds containing, besides ruthenium, rhodium, palladium, osmium, iridium, or platinum, two or more other elements, with the exception of oxygen or hydrogen
    • C—CHEMISTRY; METALLURGY
    • C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
    • C25B—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES FOR THE PRODUCTION OF COMPOUNDS OR NON-METALS; APPARATUS THEREFOR
    • C25B11/00—Electrodes; Manufacture thereof not otherwise provided for
    • C25B11/04—Electrodes; Manufacture thereof not otherwise provided for characterised by the material
    • C25B11/051—Electrodes formed of electrocatalysts on a substrate or carrier
    • C25B11/073—Electrodes formed of electrocatalysts on a substrate or carrier characterised by the electrocatalyst material
    • C25B11/075—Electrodes formed of electrocatalysts on a substrate or carrier characterised by the electrocatalyst material consisting of a single catalytic element or catalytic compound
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F1/00—Treatment of water, waste water, or sewage
    • C02F1/46—Treatment of water, waste water, or sewage by electrochemical methods
    • C02F1/461—Treatment of water, waste water, or sewage by electrochemical methods by electrolysis
    • C02F1/46104—Devices therefor; Their operating or servicing
    • C02F1/46109—Electrodes
    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01P—INDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS
    • C01P2002/00—Crystal-structural characteristics
    • C01P2002/70—Crystal-structural characteristics defined by measured X-ray, neutron or electron diffraction data
    • C01P2002/76—Crystal-structural characteristics defined by measured X-ray, neutron or electron diffraction data by a space-group or by other symmetry indications
    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01P—INDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS
    • C01P2002/00—Crystal-structural characteristics
    • C01P2002/70—Crystal-structural characteristics defined by measured X-ray, neutron or electron diffraction data
    • C01P2002/77—Crystal-structural characteristics defined by measured X-ray, neutron or electron diffraction data by unit-cell parameters, atom positions or structure diagrams
    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01P—INDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS
    • C01P2006/00—Physical properties of inorganic compounds
    • C01P2006/10—Solid density
    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01P—INDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS
    • C01P2006/00—Physical properties of inorganic compounds
    • C01P2006/60—Optical properties, e.g. expressed in CIELAB-values
    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01P—INDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS
    • C01P2006/00—Physical properties of inorganic compounds
    • C01P2006/80—Compositional purity
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F1/00—Treatment of water, waste water, or sewage
    • C02F1/46—Treatment of water, waste water, or sewage by electrochemical methods
    • C02F1/461—Treatment of water, waste water, or sewage by electrochemical methods by electrolysis
    • C02F1/467—Treatment of water, waste water, or sewage by electrochemical methods by electrolysis by electrochemical disinfection; by electrooxydation or by electroreduction
    • C02F1/4672—Treatment of water, waste water, or sewage by electrochemical methods by electrolysis by electrochemical disinfection; by electrooxydation or by electroreduction by electrooxydation
    • C02F1/4674—Treatment of water, waste water, or sewage by electrochemical methods by electrolysis by electrochemical disinfection; by electrooxydation or by electroreduction by electrooxydation with halogen or compound of halogens, e.g. chlorine, bromine
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F1/00—Treatment of water, waste water, or sewage
    • C02F1/46—Treatment of water, waste water, or sewage by electrochemical methods
    • C02F1/461—Treatment of water, waste water, or sewage by electrochemical methods by electrolysis
    • C02F1/46104—Devices therefor; Their operating or servicing
    • C02F1/46109—Electrodes
    • C02F2001/46133—Electrodes characterised by the material
    • C02F2001/46138—Electrodes comprising a substrate and a coating

Definitions

  • the present invention relates to the preparation and use of thallium palladate as a new electrochemical active substance for the cover layer of metal anodes.
  • alkaline earth palladates such as CaPd 3 O 4 , SrPd 3 O 4 and NaPd 3 O 4 could already be synthesized in pure crystalline form, a preparation and adequate characterization of TlPd 3 O 4 was impossible till now.
  • TlPd 3 O 4 as cardinal-red compound in stoichiometric composition.
  • the reaction takes place already at 500° C.
  • a gas solid-reaction is concerned.
  • the equilbrium ##STR1## IS PRESENT.
  • TlPd 3 O 4 under decomposition is readily soluble in constantly boiling hydrobromic acid, is moderately soluble in aqua regia and perchloric acid, is difficult to dissolve in sulphuric acid, nitric acid, formic acid and alkaline solvent. Above 750° C TlPd 3 O 4 is decomposed while forming elementary palladium and Tl 2 O 3 .
  • the pyknometric density was found to be 8.99 g/cm 3 and is well concurring with the X-ray density of 8.83 g/cm 3 .
  • the radiographic evaluation for TlPd 3 O 4 resulted in a cubic elementary cell:

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Engineering & Computer Science (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Electrochemistry (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Inorganic Chemistry (AREA)
  • Hydrology & Water Resources (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • General Chemical & Material Sciences (AREA)
  • Environmental & Geological Engineering (AREA)
  • Water Supply & Treatment (AREA)
  • Electrodes For Compound Or Non-Metal Manufacture (AREA)
  • Electrolytic Production Of Non-Metals, Compounds, Apparatuses Therefor (AREA)
  • Battery Electrode And Active Subsutance (AREA)
  • Primary Cells (AREA)
  • Secondary Cells (AREA)
  • Inorganic Compounds Of Heavy Metals (AREA)
  • Electrolytic Production Of Metals (AREA)
  • Led Devices (AREA)
US05/516,996 1973-10-27 1974-10-22 Preparation and use of thallium palladate as cover layer of metal anodes Expired - Lifetime US3991158A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
US05/737,548 US4065377A (en) 1974-10-22 1976-11-01 Metal anode for electrochemical processes

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE2353995A DE2353995C3 (de) 1973-10-27 1973-10-27 Kristallines TL Pd3 O4 und dessen Verwendung
DT2353995 1974-09-17

Related Child Applications (1)

Application Number Title Priority Date Filing Date
US05/737,548 Continuation-In-Part US4065377A (en) 1974-10-22 1976-11-01 Metal anode for electrochemical processes

Publications (1)

Publication Number Publication Date
US3991158A true US3991158A (en) 1976-11-09

Family

ID=5896652

Family Applications (1)

Application Number Title Priority Date Filing Date
US05/516,996 Expired - Lifetime US3991158A (en) 1973-10-27 1974-10-22 Preparation and use of thallium palladate as cover layer of metal anodes

Country Status (18)

Country Link
US (1) US3991158A (xx)
JP (1) JPS5078573A (xx)
AT (1) AT340368B (xx)
BE (1) BE821473A (xx)
CA (1) CA1047229A (xx)
CH (1) CH602940A5 (xx)
DE (1) DE2353995C3 (xx)
ES (1) ES431410A1 (xx)
FI (1) FI312174A (xx)
FR (1) FR2249038B1 (xx)
GB (2) GB1478599A (xx)
IE (1) IE39944B1 (xx)
IT (1) IT1030737B (xx)
NL (1) NL7414080A (xx)
NO (2) NO743848L (xx)
SE (2) SE403904B (xx)
SU (1) SU679155A3 (xx)
ZA (1) ZA746547B (xx)

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1506040A (fr) * 1965-12-28 1967-12-15 Matsushita Electric Ind Co Ltd électrode d'électrochimie
US3560144A (en) * 1968-06-28 1971-02-02 Du Pont Pyrochlore-type ternary oxides tl2ru207 and tl2ir207

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1506040A (fr) * 1965-12-28 1967-12-15 Matsushita Electric Ind Co Ltd électrode d'électrochimie
US3560144A (en) * 1968-06-28 1971-02-02 Du Pont Pyrochlore-type ternary oxides tl2ru207 and tl2ir207

Also Published As

Publication number Publication date
SE7413414L (xx) 1975-04-28
NL7414080A (nl) 1975-04-29
SU679155A3 (ru) 1979-08-05
IE39944B1 (en) 1979-01-31
FR2249038B1 (xx) 1981-08-07
ZA746547B (en) 1975-10-29
GB1478600A (en) 1977-07-06
CH602940A5 (xx) 1978-08-15
NO143031B (no) 1980-08-25
DE2353995C3 (de) 1978-05-24
BE821473A (fr) 1975-02-17
NO743848L (xx) 1975-05-26
IT1030737B (it) 1979-04-10
NO781320L (no) 1975-04-29
ATA811574A (de) 1977-04-15
DE2353995B2 (de) 1977-09-15
ES431410A1 (es) 1977-02-01
SE403904B (sv) 1978-09-11
NO143031C (no) 1980-12-03
FR2249038A1 (xx) 1975-05-23
FI312174A (xx) 1975-04-28
JPS5078573A (xx) 1975-06-26
CA1047229A (en) 1979-01-30
AT340368B (de) 1977-12-12
SE7800072L (sv) 1978-01-03
GB1478599A (en) 1977-07-06
IE39944L (en) 1975-04-27
DE2353995A1 (de) 1975-05-07

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Date Code Title Description
AS Assignment

Owner name: HERAEUS ELEKTRODEN GMBH, GERMANY

Free format text: ASSIGNMENT OF ASSIGNORS INTEREST.;ASSIGNOR:CONRADTY GMBH & CO. METALLELEKTRODEN KG;REEL/FRAME:005357/0269

Effective date: 19891204